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Revista EIA
versión impresa ISSN 1794-1237
Resumen
DURAN MENESES, María Fernanda; SANABRIA GOMEZ, Irma Janeth y GUTIERREZ GUZMAN, Nelson. EVALUATION OF METHANE PRODUCTION IN ANAEROBIC DIGESTION OF VINASSE PRETREATED WITH OZONE. Rev.EIA.Esc.Ing.Antioq [online]. 2015, n.24, pp.167-177. ISSN 1794-1237.
This paper presents the results of the methane production from anaerobic digestion of vinasse derived from bioethanol manufacturing, using an advanced oxidation process (AOP) with pre-treatment based on ozone. Evaluations of the treatments were performed by determining the observed changes on the concentrations the phenolic compounds on the methane production in the anaerobic digestion process can be a function of the ozone application time (7 - 15 - 30 minutes) and pH (4,2 - 7,47). The neutral pH favours by 27 % the removal of phenolic compounds in the vinasse in comparison to acid pH. It was also observed that after of vinasse ozonation process at neutral pH, the concentration of phenol decreased by 62 % influencing the methane production by 70 % with respect to the production obtained from raw vinasse.
Palabras clave : AOP; ozonation; anaerobic digestion; methane production.